✨ LTX2/2.3 — Image to video — Simple Workflow

A clean, all-in-one LTX2 image-to-video workflow built entirely with the UmeAiRT Toolkit for ComfyUI.
Only 12 nodes. No spaghetti wires. Just load your model, write your prompt, and hit generate.

⚠️ IMPORTANT — Nodes 2.0 Required

This workflow is built for the Nodes 2.0 (Vue) interface of ComfyUI. If you don't enable it, the workflow may have display problems.

How to activate Nodes 2.0:

1. Open ComfyUI

2. Go to Settings (⚙️ icon, bottom-left)

3. Find "Use Nodes V2 (Vue)" and toggle it ON

4. Refresh the page

5. Load the workflow

If you prefer the classic interface, check out my Legacy version of this workflow instead (link).

🎯 Features

• Text-to-Image generation

• Automatic download of models in auto version

• Built-in SeedVR2 upscaler — high-quality tiled upscaling (toggleable on/off) Slower than a classic upscaler, but significantly better quality

• Full metadata embedding — your images are saved with all generation parameters, ready for online publishing and remixing

• 10 LoRA slots — with individual on/off toggles and strength control and you can connect as many other lora modules to each other for as many LoRA as you want.

📦 Custom Node Required

Only one custom node to install:

👉 ComfyUI-UmeAiRT-Toolkit

Install via ComfyUI Manager (search "UmeAiRT") or use the UmeAiRT Auto-Installer.
The Toolkit packages everything internally — upscaler, face detailer, metadata saver. No other custom nodes needed.

📂 Files you need (in manual version)

LTX2.3 :

LTX2 Quant Model: base, fp8, Q8, Q6, Q5, Q4, Q3
In models/unet

GEMMA-3: fp4, Q8, Q6, Q5, Q4, Q3
in models/clip

TEXT ENCODER: ltx-2.3_text_projection_bf16.safetensors
in models/clip

VIDEO VAE: LTX23_video_vae_bf16.safetensors
in models/vae
AUDIO VAE: LTX23_audio_vae_bf16.safetensors
in models/vae

Upscale model: ltx-2.3-spatial-upscaler-x2-1.1.safetensors

in models/latent_upscale_models

LTX2 :

LTX2 Quant Model: Q8, Q6, Q5, Q4, Q3 (i recommend Q5)
In models/unet

MelBandRoFormer : MelBandRoformer_fp32.safetensors
in models/diffusion_models

GEMMA-3: Q8, Q6, Q5, Q4, Q3 (i recommend Q4)
in models/clip

TEXT ENCODER: ltx-2-19b-embeddings_connector_dev_bf16.safetensors
in models/clip

VIDEO VAE: TX2_video_vae_bf16.safetensors
in models/vae
AUDIO VAE: LTX2_audio_vae_bf16.safetensors
in models/vae

Upscale model: ltx-2-spatial-upscaler-x2-1.0.safetensors

in models/latent_upscale_models

Recommanded LoRA:

• ltx-2-19b-distilled-lora-384.safetensors

• ltx-2-19b-ic-lora-detailer.safetensors

in models/loras